Wrench



April17, 192s. L 1,666,740

H. K. HYRUP WRENCH Filed Sept. 16, 1925 of which is made U-shaped in cross sectionV Patented Apr. 17, 1928.

UNITED j T HANs K. HYaUrfoFgLosjaNGELns, oALrFonNiA..

i 'Appiibaun fund september 'My invention relates 'generali to wrenches and 'more particularly, to a Wrench of rela`v tivelyA large size andfwl'iiclris 'especially' in order that it may ber readily 'usedonv pipes and caslngs ofwdifferent sizes' as welly as on V.vboltheads and nuts off/different sizes, 4to provide a Wrench of the character referred to thatmay be very securely engaged and gripped upon the pipe. nut or boltthat is to be'jmanipulated and' further-"to 'providefa Wrench that is'of strong, rugged construcf tion and well labletowithstand the rough;

directly in front of4 shoulderf20.- Passing usageto which it is ordinarily subjected.

lVith the foregoing and other objects in view, my invention consistsin certain Yfeatures of construction and, arrangement of parts that will hereinafter be more fully described and claimed andillustrat'ed in the accompanying ldrawingsggin. which-4- Fig. 1 is aI-sideelevational view "of a wrench constructed in accordance with my invention'and with parts thereof in vertical section.

Fig. `2 is a plan view' of the Wrench. -V v Fig. 3 is anenlargedvertical section takenv r Y l y when 'liandlep28 "is moved 'into engagement .with handle 12. j t

form of Wrench, 10 designates a fixed jaw,

the rear portion of Whichis divided bya vertical slot 11 so as to provide a pair of Aside walls and the rear portions of these side Walls are extended for a suitable distance to provide a handle 127 the outer end portion as designated by 13. Seated in the underside of the forward end portion of jaw 10 is a hardened metal block 141 thatoccupies an angular position and the under face thereof, which is adapted to engage the Wol-k, is toothed or serrated as designatedby 15.- z

Adjustably arranged inthe opening 11 is the shank portion 16.01 a substantially L-v shaped jaw 17 the lower portion of which occupies an angular position parallel with *isA applicable for` generall 16,119,25. vseri'aiiiof 56.71;.'

the'plane occupiedbyithe angularlyfdi'sy il posed end of jaWlO, and-seated in the-upper face of jaiv y17 is aliardened metal block 181' and thefupper or Avork'engaging face thereof beingtoothedr or serratedmas designated byf19f i f: i

T he front edge of 16 normally bears against a vertically` disposcd'shoulder 20 at the forward endiof opening; 11 Aand formedk so.l

in the` front upper portion of shank 16 is av series of notches 21.' .Pivotally mounted on a transversely disposedtpinv orfbolt 22l that is seated Ain the forward portion of jaw 10 is one end of a short doer or adjustinglever'23 Vthe opposite end' of vivlii'climis provided With a head 24 thatv isy adapted. to occupyv anyY one of the notches 21. l Passing vertically through this dog 231. near its, forward endis an `adjusting screw or`bolt 25, the lower end of which bears on* :i hardened metal disk 26 that is seated in the upper face of jaw 10 transverselythrough the .wallsfto the sides of opening 11 atfthebrearend of jaWlO is a pin or bolt 27 'that yserves as a fulcrum for a handle 28, which latter `lies directly between and over handle 12l and its U-shaped outer'fportion 13.` lvThishandle 28 is slightly longer than thefhandlef12. 'i

VMounted frjrota'ti n 'in substantially circular rec`essf297 that is formed in the for-l to" bearf'a'gainst there-rear; face of lshank 16 through the opening 11k eitherby manipulation of adjusting screw or bolt 25 or by sliding the movabley jawupward a sufficientl distance to disengage the head y24e of dog 23 from the'notoh 21 in which it has been en gaged. In the latter event the head of the Y ward portion of the'head 30 of handle 2'8kis La hardened'metal roller31 that is adapted dog may `be lie-engaged in oneof the notches 21 so Ythat when jaw 17 is moved downward until the end of screw 25y bears on disk'26 lthe movable jawfwill have been adjustedy relative to the fixed jaw the distance between two or more notches as the case mayV be. vWhen handle 28 is again swung downward to engage with handle 12, roller 31 vbearing againstthe rear edge of shank 16 nipulation of set screw 25 which in bearing on disk 26 raises or lowers the free end of the dog 23 or the end that engages the adjustable jaw. Y

`When the Wrench is used in breaking or screwing together' the sections of oil VWell tubing or casing and for other heavy Work, the cooperation of the movable handle 28 kwith the relatively fixed handle 13 enables the wrench to be very effectively manipulated and by properly proportioning the length of said handles the desired purchase or leverage on the engaged object may be readily obtained.

Wrenches of my improved construction are capable of ready adjustment, are of strong, rugged construction, may be easily and cheaply produced and are very effective in performing their intended functions. Obviously minor changes in the size, form and construction of the various parts of my improved Wrench may be made and substituted for those herein shown and described ivithout departing from the spirit ot'- my invent-ion, the scope oi' which is set lorth in the appended claims.

I claim as my invention:

1. Ina Wrench, a handle7 a jaw pivotally connected thereto, which jaw is provided with an opening. a substantially L-shaped jaw having one of its legs extending through the opening in the other jaw, the leg of said L-shaped jaw that projects .through said opening being provided in its front face with a series of notches, a member pivotally and adjustably mounted. upon the jaw that is pivoted to the handle for engagement in the notches in the leg of said Leshaped jaw and a member carried by the pivoted end of the handle for engaging the L-shaped jaw and locking the same to the jaw that is carried by thejaw to which said handle '1s pivoted.

2. In a Wrench, a jawprovided with an opening, a handle formed integral with one end of said jaw, a second khandle pivotally connected to said jaw between saidopening and the integral handle, a substantially L- shaped jaw havingl its shank portion extending through the opening inthe first mentioned jaw, the front edge ot the shank of said L-shaped jaw beingV provided with a series of notches, a member pivotally mount`- ed upon the lirst mentioned jaw and adapted to engage one of the notches in the shank ot the LY-shaped jaw, means carried by said pivotally mounted member for adjusting the position thereof on the jaw to which said member is pivoted, and means on the inner p f end of the pivoted handle for Abearing against the rear edge ofthe shank of the L-shaped jaw to lock the tWo jaws to each other. v

23. In a wrench, a jaw provided with an opening, a substantially L-shaped jaw having its shank portion extending through the opening in the first-mentioned jaw, the shank of the L-shapcd ,jaw'being provided on its forward edge with a series of notches1 a member pivotally and adjust-ably mounted upon the first mentioned jaw and adapted to occupy one of the notches in the shank of said L-shaped jaw, av handle pivotally connected to the first mentioned jaw tothe rear of the opening therein and an anti-,friction member loosely mounted on the tor- Ward end of the handle for engagement with the rear edge `of the shank of the L-shaped jaw. 4

In testimony Whereof'I affix my signature.

HANS K. HYRUP 

